CDT Occlusion & Articulation

Question 1

How is centric occlusion defined in dental terminology?

Accepted Answer

The position of maximum intercuspation of opposing teeth

Answer

The most retruded position of the mandibular condyles

Answer

The position where condyles are seated in centric relation

Answer

The position determined by the face-bow transfer

Question 2

What is the primary purpose of a face-bow transfer in dental prosthetics?

Accepted Answer

To relate the maxillary cast to the hinge axis of the articulator

Answer

To record the patient's bite registration in wax

Answer

To measure the vertical dimension of occlusion

Answer

To determine the incisal guidance angle

Question 3

Which type of articulator is capable of replicating all three-dimensional mandibular movements?

Accepted Answer

Fully adjustable articulator

Answer

Simple hinge articulator

Answer

Average value articulator

Answer

Semi-adjustable articulator

Question 4

What is balanced occlusion as it applies to complete dentures?

Accepted Answer

Simultaneous bilateral tooth contacts in centric and all eccentric positions

Answer

An equal number of tooth contacts on each side in centric only

Answer

Contacts confined to the premolar region for stability

Answer

Maximum intercuspation achieved only in centric occlusion

Question 5

What is the accepted definition of centric relation?

Accepted Answer

The musculoskeletally stable position of the condyles in the glenoid fossae

Answer

The position of maximum intercuspation of the teeth

Answer

The most protruded position of the mandible

Answer

The jaw position determined by muscle memory alone

Question 6

What is a protrusive interocclusal record primarily used to set on a semi-adjustable articulator?

Accepted Answer

The condylar inclination (sagittal condylar guidance)

Answer

The Bennett angle for lateral movements

Answer

The incisal guidance table angle

Answer

The vertical dimension of occlusion

Question 7

Which Angle's classification describes a normal molar relationship (Class I)?

Accepted Answer

The mesiobuccal cusp of the upper first molar occludes in the buccal groove of the lower first molar

Answer

The mesiobuccal cusp of the upper first molar occludes mesial to the lower first molar buccal groove

Answer

The mesiobuccal cusp of the upper first molar occludes distal to the lower first molar buccal groove

Answer

The upper first molar is entirely lingual to the lower first molar